. Bulletin - New York State Museum. Science. 486 NEW YORK STATE MUSEUM Floods in Susquehanna river. By common: consent the highest Hood experienced in this stream within the historical period was in March, 1S65, but aside from the fact that considerable damage ensued, little is known in regard thereto. The entire region drained by the Susquehanna river in New York State, as well as in Pennsylvania, is not only mountainous, but largely denuded of timber. The flood-flows of the stream are, therefore, large. The catchment area above Chenango river is 2400 square miles. There is a State dam, forme
. Bulletin - New York State Museum. Science. 486 NEW YORK STATE MUSEUM Floods in Susquehanna river. By common: consent the highest Hood experienced in this stream within the historical period was in March, 1S65, but aside from the fact that considerable damage ensued, little is known in regard thereto. The entire region drained by the Susquehanna river in New York State, as well as in Pennsylvania, is not only mountainous, but largely denuded of timber. The flood-flows of the stream are, therefore, large. The catchment area above Chenango river is 2400 square miles. There is a State dam, formerly used in connection with Chenango canal, across this river at Binghamton, and S. E. Monroe, City Engineer 9 & C)> ; r. Fig. 37 Outline section of State dam at Binghamton. of Binghamton, has compiled a map on which he has placed high- water elevations during the flood of March, 1902, together with a plan elevation and cross-section of dam. The figures show that the depth on the crest of this dam was feet, with a difference of elevation above and below the dam of two feet. Computing the flow over this dam as a submerged weir, and making various cor- rections, including one for the water flowing through the lock at the south side of the river, it is found that the flood-flow in March, 1902, was about. 70,000 to 80,000 cubic feet per second, or possibly at the rate of something over 33 cubic feet per second per square mile. A flow at this rate is less than might reasonably be expected; accordingly it may be assumed that the flood of March, 1902, was not the largest flood likely to occur on the Sus- quehanna river. Comparing it with other similar streams, there seems reason for supposing that at some time there may be a flood here of at least 50 cubic feet per second per square mile. Such extreme floods, however, do not occur more than once or twice in a century. The flood of March, 1865, which is the largest knownf. Please note that these images are extracte
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